WARPATH
warpath
(noun) a course leading to warfare or battle
warpath
(noun) hostile or belligerent mood; “the chief is on the warpath today”
Source: WordNet® 3.1
Etymology
Noun
warpath (plural warpaths)
(historical) The route taken by a party of Native Americans going on a warlike expedition.
(figurative) A course of action that leads to battle or hostility.
Usage notes
This word is most often used in the phrase “on the warpath”.
Source: Wiktionary
War"path`, n.
Definition: The route taken by a party of Indians going on a warlike
expedition. Schoolcraft. On the warpath, on a hostile expedition;
hence, colloquially, about to attack a person or measure.
Source: Webster’s Unabridged Dictionary 1913 Edition